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dc.contributor.authorJiang, Jiawei
dc.contributor.authorLiu, Manping
dc.contributor.authorLiu, Yang
dc.contributor.authorTang, Kai
dc.contributor.authorWang, Zibo
dc.contributor.authorLi, Yichao
dc.contributor.authorYu, Yingda
dc.contributor.authorSkaret, Pål Christian
dc.contributor.authorRoven, Hans Jørgen
dc.date.accessioned2017-10-10T07:13:06Z
dc.date.available2017-10-10T07:13:06Z
dc.date.created2016-11-03T11:41:39Z
dc.date.issued2017
dc.identifier.citationMaterials Science Forum. 2017, 877 437-443.nb_NO
dc.identifier.issn0255-5476
dc.identifier.urihttp://hdl.handle.net/11250/2459310
dc.description.abstractMicrostructure and mechanical properties of a 6013 Al-Mg-Si-Cu aluminum alloy processed by a combination of equal channel angular pressing (ECAP) and preaging treatment were comparatively investigated using quantitative X-ray diffraction (XRD) measurements, transmission electron microscopy (TEM) and tensile tests. In addition, the precipitation sequences were obtained by thermodynamic calculations using the FactSage software package. Average grain sizes measured by XRD are in the range 211–501 nm while the average dislocation density is in the range 0.35-1.0 × 1014 m-2 in the deformed alloy. TEM analysis reveals that fine needle β′′ precipitates with an average length of 4-10 nm are uniformly dispersed in the preaging ECAPed alloy. The local dislocation density in this sample is as high as 2.2×1017 m-2. The strength is significantly increased in the preaging-ECAPed samples as compared to that of the undeformed counterparts. The highest yield strength among the preaging ECAPed alloys is 322 MPa. This value is about 1.25 times higher than that (258 MPa) of the static peak-aging sample. The high strength in the preaging ECAPed alloy is suggested to be related to grain size strengthening and dislocation strengthening, as well as precipitation strengthening contributed from both preaging treatment and ECAP deformation.nb_NO
dc.language.isoengnb_NO
dc.publisherTrans Tech Publicationsnb_NO
dc.titleMicrostructure and Mechanical Properties of 6013 Aluminum Alloy Processed by a Combination of ECAP and Preaging Treatmentnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber437-443nb_NO
dc.source.volume877nb_NO
dc.source.journalMaterials Science Forumnb_NO
dc.identifier.doi10.4028/www.scientific.net/MSF.877.437
dc.identifier.cristin1396960
dc.description.localcodeThis is the authors’ accepted and refereed manuscript to the article. Will not be available due to copyright restrictions.nb_NO
cristin.unitcode194,66,35,0
cristin.unitnameInstitutt for materialteknologi
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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